import java.util.*;
import java.io.*;
public class JukeBox6 {
    ArrayList<Song> songList = new ArrayList<Song>();
    public void go(){
        getSongs();
        System.out.println(songList);
        Collections.sort(songList);
        System.out.println(songList);
        HashSet<Song> songSet = new HashSet<Song>();
        songSet.addAll(songList);
        System.out.println(songSet);
    }
}
